stuck on question (1 Viewer)

[Kaatie]

well i have 2(pie)r^2 + (108(pie)r)/r^2
how does this convert to 2(pie)r^2 + 108(pie)r^-1???

i know its probably some basic year 7/8 stuff but im really stumped

 

[tommykins]

the r cancels out so you have 108pi/r = 108pi.r^-1

 

[Kaatie]

oh that was obvious. how embarrassing lol

 

[Arowana21]

yeh like waht tommykin said....
this is frikin easy shit man....!!!1

 

[Kaatie]

im guessing you do 4u arrowana? what school do you go to? just curious